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1. Behaviors of a settling microswimmer in a narrow vertical channel

Author:
Zhenyu Ouyang; Jianzhong Lin
Source:
Powder technology 2022 v.398 pp. 117042
ISSN:
0032-5910
Subject:
gravity,   etc   ; models; technology;     Show all 3 Subjects
Abstract:
... An immersed boundary-lattice Boltzmann (IB-LB) method is employed to study the behaviors of a settling microswimmer in a narrow vertical channel (blockage ratio κ = 0.5). We perform the simulations with swimming Reynolds numbers (Reₛ) between 0.1 and 3.0 and the density ratios (γ) between 1.1 and 2.3. A two-dimensional squirmer model is used to mimic a microswimmer, finding four typical locomotive ...
DOI:
10.1016/j.powtec.2021.117042

2. E-Region Field-Aligned Irregularities in the Middle of a Solar Eclipse Observed by a Bistatic Radar

Author:
Lei Qiao; Gang Chen; Wanlin Gong; Xuesi Cai; Erxiao Liu; Mingkun Su; Xuyang Teng; Zhaoyang Qiu; Huina Song
Source:
Remote Sensing 2022 v.14 no.2 pp. -
ISSN:
2072-4292
Subject:
gravity,   etc   ; ionization; radar;     Show all 3 Subjects
Abstract:
... The Wuhan Ionospheric Oblique Backscatter Sounding System (WIOBSS) was applied as a bistatic radar to record the ionospheric E-region responses to a solar eclipse on 22 July 2009. The transmitter was located in Wuhan and the receiver was located in Huaian. The receiver observed anomalous echoes with larger Doppler shifts at the farther ranges compared with the echoes reflected by Es. According to ...
DOI:
10.3390/rs14020392

3. Motion of small bubbles and drops in viscoelastic fluids

Author:
Dominique Langevin
Source:
Current opinion in colloid & interface science 2022 v.57 pp. 101529
ISSN:
1359-0294
Subject:
gravity,   etc   ; Reynolds number; viscoelasticity;     Show all 3 Subjects
Abstract:
... Viscoelastic materials containing bubbles or drops are encountered in numerous application fields and are presently the object of much interest. The motion of bubbles and drops in these matrices can be significantly different than in Newtonian fluids. This review is restricted to the case of motion in quiescent fluids (or small Reynolds number) and small bubbles and drops that are not appreciably ...
DOI:
10.1016/j.cocis.2021.101529

4. Flow rates of double‐lumen over‐the‐wire catheters for high‐volume fluid resuscitation in large animal species

Author:
Juliana H. Giffoni; Raffaella B. C. Teixeira; Raphael R. Wenceslau; Melina A. F. Abrantes; Jéssica G. Oliveira; Jorge T. B. Lima; Renata P. A. Maranhão; Maristela S. Palhares
Source:
Journal of veterinary emergency and critical care 2022 v.32 no.2 pp. 216-222
ISSN:
1479-3261
Subject:
gravity,   etc   ; catheters; hospitals; polyurethanes; starch;     Show all 5 Subjects
Abstract:
... OBJECTIVES: To evaluate the maximum in vitro flow rate of 6 types of polyurethane over‐the‐wire double lumen catheters using both ports, for high volume fluid resuscitation in large animal species. SETTINGS: University teaching hospital. DESIGN: Prospective in vitro experimental study. INTERVENTIONS: The flow rate of both ports of 6 polyurethane double lumen over‐the‐wire catheters (11 and 13–Fr, ...
DOI:
10.1111/vec.13163

5. The Effect of Phosphate on the Activity and Sensitivity of Nutritropism toward Ammonium in Rice Roots

Author:
Kiyoshi Yamazaki; Toru Fujiwara
Source:
Plants 2022 v.11 no.6 pp. -
ISSN:
2223-7747
Subject:
gravity,   etc   ; ammonium; cultivars; phosphates; rice;     Show all 5 Subjects
Abstract:
... Understanding how plants determine growth direction from environmental cues is important to reveal optimal strategies in plant survival. Nutritropism is the directional growth of plant roots towards nutrient sources. Our previous study showed that an NH₄⁺ gradient stimulates nutritropism in the lateral roots, but not in the main roots, of a rice cultivar. In the present study, we report nutritropi ...
DOI:
10.3390/plants11060733

6. Updated review on microplastics in water, their occurrence, detection, measurement, environmental pollution, and the need for regulatory standards

Author:
Ahmed Yusuf; Ahmed Sodiq; Adewale Giwa; Joyner Eke; Oluwadamilola Pikuda; Jamiu O. Eniola; Bilkis Ajiwokewu; Nonni Soraya Sambudi; Muhammad Roil Bilad
Source:
Environmental pollution 2022 v.292 pp. 118421
ISSN:
0269-7491
Subject:
gravity,   etc   ; aquatic environment; microplastics; pollution;     Show all 4 Subjects
Abstract:
... The gravity of the impending threats posed by microplastics (MPs) pollution in the environment cannot be over-emphasized. Several research studies continue to stress how important it is to curb the proliferation of these small plastic particles with different physical and chemical properties, especially in aquatic environments. While several works on how to monitor, detect and remove MPs from the ...
DOI:
10.1016/j.envpol.2021.118421

7. Wave attenuation by multiple slotted barriers with a zig-zag arrangement -A physical and numerical approach

Author:
V. Kumaran; S. Neelamani; K.G. Vijay; N. Al-Anjari; A. Al-Ragum
Source:
Journal of hydro-environment research 2022 v.41 pp. 25-37
ISSN:
1570-6443
Subject:
gravity,   etc   ; fluid mechanics; porosity; research;     Show all 4 Subjects
Abstract:
... In the present study, scattering of surface gravity waves by multiple slotted vertical barriers arranged in a zig-zag manner is analyzed by employing Computational Fluid Dynamics (CFD) and validated with physical model tests. The porosity of the vertical slotted barrier is varied from 10% to 40%, and the number of slotted barriers varied from 1 to 6. The results from CFD correlate well with the la ...
DOI:
10.1016/j.jher.2022.02.001

8. Hydrophilic SPE/MPTES-PAN electrospun membrane prepared via click chemistry for high efficiency oil–water separation

Author:
Baosheng Shen; Chunxiao Du; Wei Wang; Dan Yu
Source:
Journal of materials science 2022 v.57 no.2 pp. 1474-1488
ISSN:
0022-2461
Subject:
gravity,   etc   ; ammonium; hydrophilicity; nanofibers; polyacrylonitrile; zwitterions;     Show all 6 Subjects
Abstract:
... There are various methods to introduce functional groups into the membrane surface to get oil–water separation performance, but most of them involve complicated reaction conditions and processes. Inspired by click chemistry, we developed a simple method to fabricate click chemistry-modified membranes. Firstly, polyacrylonitrile and γ-mercaptopropyltriethoxysilane were mixed together to prepare nan ...
DOI:
10.1007/s10853-021-06688-2

9. Probabilistic identification of Preferential Groundwater Networks

Author:
Massimiliano Schiavo; Monica Riva; Laura Guadagnini; Erwin Zehe; Alberto Guadagnini
Source:
Journal of hydrology 2022 pp. 127906
ISSN:
0022-1694
Subject:
gravity,   etc   ; aquifers; groundwater; subsurface flow; topography;     Show all 5 Subjects
Abstract:
... We characterize key features of subsurface flow paths relying on an energetic and probabilistic perspective. We consider subsurface flow in a free aquifer system as mainly ruled by gravity, the latter acting as the key driving force. Therefore, we study groundwater circulation relying upon stochastic simulations of aquifer bottom topography inferred from stratigraphic observations. Upon resting on ...
DOI:
10.1016/j.jhydrol.2022.127906

10. Study on the segregation of brown rice and rice husks mixture in inclined chute flow

Author:
Peiyu Chen; Fuguo Jia; Yanlong Han; Xiangyi Meng; Anqi Li; Yanhao Chu; Hongwei Zhao
Source:
Powder technology 2022 v.404 pp. 117393
ISSN:
0032-5910
Subject:
gravity,   etc   ; brown rice; paddies; particle size;     Show all 4 Subjects
Abstract:
... In the process of paddy hulling, the separation of rice husks and brown rice mixture is an indispensable stage. Usually, the mixture is transported along inclined chute driven by gravity from hulling system to pneumatic separation system to complete separation. To promote segregation of mixture is the key for improving separation effect. However, the segregation law and mechanism of two-property d ...
DOI:
10.1016/j.powtec.2022.117393

11. gTOOLS, an open-source MATLAB program for processing high precision, relative gravity data for time-lapse gravity monitoring

Author:
Maurizio Battaglia; Antonina Calahorrano-Di Patre; Ashton F. Flinders
Source:
Computers & geosciences 2022 v.160 pp. 105028
ISSN:
0098-3004
Subject:
gravity,   etc   ; computer software; user interface; Ecuador;     Show all 4 Subjects
Abstract:
... gTOOLS is an open-source software for the processing of relative gravity data. gTOOLS is available in MATLAB and as a compiled executable to be run under the free MATLAB Runtime Compiler. The software has been designed for time-lapse (temporal) gravity monitoring. Although programmed to read the Scintrex CG-5 and CG-6 gravimeters output data files, it can be easily modified to read data files from ...
DOI:
10.1016/j.cageo.2021.105028

12. Changes in morphology and specific gravity in larvae of Lophius litulon (Lophiiformes; Lophiidae) before and after emergence from egg veil

Author:
Tomoya Ishikawa; Mitsuhiro Nakaya; Weifeng Gao; Tetsuya Takatsu; Kenji Odani; Ryo Suzuki; Kyosei Noro; Yuhei Takeya
Source:
Environmental biology of fishes 2022 v.105 no.2 pp. 303-312
ISSN:
0378-1909
Subject:
specific gravity,   etc   ; Lophius litulon; eggs; ontogeny; tail;     Show all 5 Subjects
Abstract:
... Species of the genus Lophius spawn ribbon-shaped egg masses called an “egg veil.” Egg veils are composed of numerous mucoid chambers each enveloping eggs. The subsequent larvae have been observed to remain in the chamber for a period of time after hatching from eggs in some species of Lophius. However, the period until the larvae emerge from the egg veil is unclear. Here we discuss the timing of t ...
DOI:
10.1007/s10641-022-01222-y

13. Data Processing of Gravity Base Network in Plateau Area: The Case of Qinghai Province, China

Author:
Qiong Wu; Shi Liu; Bin Wang; Linshan Zhong; Lijiang Zhao; Shengpeng Zhang; Hongqing Li
Source:
Remote Sensing 2022 v.14 no.5 pp. -
ISSN:
2072-4292
Subject:
gravity,   etc   ; Bayesian theory; calibration; surveys; topography; China;     Show all 6 Subjects
Abstract:
... The latest gravity survey of the gravity base network in Qinghai Province, China, was conducted with six Scintrex CG gravimeters and this gravity survey was tied to existed gravity reference stations. In this gravity network with long segments and very rugged topography, the calibration of scale factors is a time-consuming progress and its accuracy may be affected by many uncertainties, and the ch ...
DOI:
10.3390/rs14051142

14. Earth-like thermal and dynamical coupling processes in the Martian climate system

Author:
Zhaopeng Wu; Tao Li; Nicholas G. Heavens; Claire E. Newman; Mark I. Richardson; Chengyun Yang; Jing Li; Jun Cui
Source:
Earth-science reviews 2022 v.229 pp. 104023
ISSN:
0012-8252
Subject:
gravity,   etc   ; climate; convection; dust; hydrologic cycle; mesosphere;     Show all 6 Subjects
Abstract:
... The burst of Mars exploration in the past two decades has significantly improved our knowledge of the Martian atmosphere. A variety of complementary, multiannual observational records have revealed Earth-like cycling of dust and water through the Mars system, as well as hints of dynamical coupling between the lower, middle, and upper atmosphere involving deep convection, planetary waves, thermal t ...
DOI:
10.1016/j.earscirev.2022.104023

15. Gravity-driven layered double hydroxide nanosheet membrane activated peroxymonosulfate system for micropollutant degradation

Author:
Muhammad Bilal Asif; Hongyu Kang; Zhenghua Zhang
Source:
Journal of hazardous materials 2022 v.425 pp. 127988
ISSN:
0304-3894
Subject:
gravity,   etc   ; catalysts; nanosheets; pH; pollutants; water treatment;     Show all 6 Subjects
Abstract:
... For the first time in this study, CoAl-layered double hydroxide nanosheet membrane (LDHₘ) with abundant active sites was fabricated for peroxymonosulfate (PMS) activation with the mindset to catalytically degrade micropollutants. Depending on the catalyst loading, the developed LDHₘ can be driven under gravity at a permeate flux of approximately 80 L/m² h and 210 L/m² h at LDH loading of 0.80 mg/c ...
DOI:
10.1016/j.jhazmat.2021.127988

16. On the discharge variation of a qanat in an alluvial fan aquifer

Author:
Mohammad M. Sedghi; Hongbin Zhan
Source:
Journal of hydrology 2022 v.610 pp. 127922
ISSN:
0022-1694
Subject:
gravity,   etc   ; horizontal wells; permeability; rain; unconfined aquifer;     Show all 5 Subjects
Abstract:
... Qanat is a passive (unpumped) horizontal well (or a slant well with a very mild inclined angle) that is capable of extracting water from aquifers by gravity. Many qanats are constructed along the radius of the alluvial fan wedge-shaped aquifers. Analytical modeling of such a qanat-aquifer system provides great benefit for quickly screening different designs of qanats and accessing the performance ...
DOI:
10.1016/j.jhydrol.2022.127922

17. One-step electrospinning membranes with gradual-transition wettability gradient for directional fluid transport

Author:
Quan Shen; Yue Jiang; Shanzhu Guo; Lin Huang; Haibo Xie; Long Li
Source:
Journal of membrane science 2022 v.644 pp. 120091
ISSN:
0376-7388
Subject:
gravity,   etc   ; energy conservation; liquids; oils; permeability; wettability;     Show all 6 Subjects
Abstract:
... Gradual-transition wettability gradient is a highly promising wettability profile for driving fluid directionally transport across the thickness of porous membranes. However, the fabrication of such membranes is still challenging, limiting their further application in various fields. Here, we report a one-step strategy to fabricate membranes with gradual-transition wettability gradient (GMs) by pr ...
DOI:
10.1016/j.memsci.2021.120091

18. ANU GRACE Data Analysis: Characteristics and Benefits of Using Irregularly Shaped Mascons

Author:
P. Tregoning; R. McGirr; J. Pfeffer; A. Purcell; H. McQueen; S. Allgeyer; S. C. McClusky
Source:
Journal of geophysical research 2022 v.127 no.2 pp. e2021JB022412
ISSN:
2169-9313
Subject:
gravity,   etc   ; climate; coasts; geophysics; hydrology; research; watersheds; Greenland;     Show all 8 Subjects
Abstract:
... The estimation of mass anomalies using Gravity Recovery and Climate Experiment (GRACE) data involves parameterizing the temporal gravity field using basis functions. In this study, we show that the use of irregularly shaped mass concentration (mascon) tiles that follow land/ocean boundaries reduces the leakage of land signals into ocean regions and vice versa. Leakage of signal from continents to ...
DOI:
10.1029/2021JB022412

19. Comparison of various forces acting on magnetic particles in a low-intensity magnetic field: A 3D FEA

Author:
Jun Xia; Zhongyun Lei; Kaixi Jiang; Qian Wang; Jiangang Ku; Quanxiang Yan
Source:
Powder technology 2022 v.401 pp. 117351
ISSN:
0032-5910
Subject:
gravity,   etc   ; finite element analysis; magnetic fields; magnetic separation;     Show all 4 Subjects
Abstract:
... Magnetic agglomeration plays a vital role in enhancing the separation of fine magnetic mineral particles. However, the forces causing magnetic agglomeration in wet low-intensity magnetic separators (LIMS) are poorly understood; this calls for improved understanding of various forces (including magnetic force (Fₘ), magnetic agglomeration force (Fₘₘ), gravity (G)) acting on magnetic particles in the ...
DOI:
10.1016/j.powtec.2022.117351

20. Industrial recycling of end-of-life vehicle windshield glass by mechanical beneficiation and complete recovery of polyvinyl butyral

Author:
Basudev Swain; Jae Ryang Park; Chan Gi Lee
Source:
Journal of cleaner production 2022 v.334 pp. 130192
ISSN:
0959-6526
Subject:
gravity,   etc   ; environmental law; glass; plastics; rubber; Korean Peninsula;     Show all 6 Subjects
Abstract:
... The environmental concern of end-of-life vehicles and stringent environmental regulation like the resource conservation and recovery act of the USA, and registration, evaluation, authorization, and restriction of chemicals act of EU and Korea mandates the recycling of the ELV. The EU-Directive 2000/53/EC on end-of-life vehicles was enacted in 2000, imposed a target to recycle for reuse and recover ...
DOI:
10.1016/j.jclepro.2021.130192